GUMSHOEING Meaning of GUMSHOEING in English gum ‧ shoe ‧ ing /ˈɡʌmˌʃuːɪŋ/ BrE AmE noun [uncountable] American English informal when you try to find out information about something SYN detective work Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012